Singapore Institute of Advanced Medicine Holdings Ltd is a Singapore-based healthcare service provider comprising a medical center, diagnostic imaging facility, nuclear medicine clinic, and radiation oncology service providing proton and X-ray radiotherapy. Its operating segments are: Medical Diagnostics and Treatments, Radiation Therapy and Medical Oncology Services, and Investment Holding. Medical Diagnostics and Treatments include: cancer-related diagnostics and theranostics treatments, general diagnostics and health screening, and aesthetic services. Radiation Therapy encompasses proton beam therapy, photon radiation therapy, and Medical oncology. The majority of the company's revenue comes from the Medical Diagnostics and Treatments segment.